Curated OER
Add and Subtract within 1000
Here are some practice problems with adding and subtracting three-digit numbers. Scholars complete three addition problems and three subtraction problems. None of these involve carrying over or regrouping. There are only two numbers to...
Curated OER
Sum and Difference angle formulas
Learners use the sum angle formula for sine to derive the sum and difference formulas for cosine and tangent. The level of difficulty is quite high. Learners must be familiar with trigonometric identities as well as the characteristics...
Curated OER
Roman Numerals
Count to 20 using roman numerals. It's a great way to practice addition and subtraction and to explore alternative number systems. Each of the six slides in this presentation include sound bites, a Roman to Arabic number equivalency, and...
Curated OER
Add and Subtract with Unlike Denominators
In this adding and subtracting with unlike denominators worksheet, learners add and subtract fractions with unlike denominators. They complete six problems.
Curated OER
Addition Drill
A basic problem-solving learning exercise has scholars completing 10 addition problems. The problems each involve two addends, and have single, double, and triple-digit numbers. Once they have found the sum, they locate the number...
Curated OER
Pac Man Subtraction
Third and fourth graders engage in a game using visual symbols, auditory responses and tactile stimuli to further their understanding of subtraction. A worksheet imbedded in this plan explains how to teach the game.
Curated OER
Fact Families
There is something to be said for fact families. Classmates read problems and write related fact families and number sentences. There are 6 wonderful problems to solve.
Curated OER
Add and Subtract within 1000
There are some missing parts in these addition and subtraction problems. Scholars start by completing two number sentences, each involving all three-digit numbers. Then, they examine another number to determine the value of the tens...
Curated OER
Add and Subtract
In these twenty pages of addition and subtraction problems worksheets, students subtract one-digit from one-and two digits, add one-digit plus one- and two digits, and both add and subtract to problem solve. Students solve 200 problems.
Curated OER
Bank Tellers and Math
Second graders learn what math skills bank tellers need to do their jobs correctly.
Curated OER
Investigation - Snack TIme
Students explore solving addition and subtraction problems. They solve real life problems. Students participate in a simulation activity to find the missing addend. They demonstrate adding and subtracting whole numbers.
Curated OER
One More/One Less Scoop
It's so simple: scoop a spoonful of counters, count them, and then make a set that is one more than that number. Next, make a set that is one less. The tangible nature of this basic addition and subtraction activity will keep learners...
Curated OER
Two Word Problems
The class solves two basic word problems that requires addition or subtraction. They are encouraged to draw a picture that illustrates each problem.
Curated OER
Same Picture Subtraction and Addition
In this addition and subtraction instructional activity, students make a subtraction and addition sentence for the same picture, then write additional sentences as instructed. A website reference for additional resources is given.
![One-Digit Addition and Subtraction [F] Worksheet](http://content.lessonplanet.com/resources/thumbnails/217740/large/bwluav9tywdpy2symde3mdqwoc0yndi0nc0xzmy3mtq3lmpwzw.jpg?1491661564 "One-Digit Addition and Subtraction [F] Worksheet")
Curated OER
One-Digit Addition and Subtraction [F]
For this addition and subtractions worksheet, students solve a total of 49 problems; all problems use one-digit numbers. Answers are included on page 2.
Curated OER
Math Center: Fishing
For this math worksheet, students reinforce addition and subtraction facts 0 to 12 by collaborating in a fishing game. Kids fish for numbers with a magnet and create a math sentence, flipping a coin to determine the operation used....
EdHelper
Addition: Missing Number Fill In
For this addition worksheet, students fill in a missing addend to solve 23 problems. Worksheet is part of a subscription site with links and is labeled as a sample.
Curated OER
Addition Subtraction
In this sum and difference learning exercise, students find the sum and difference of one digit numbers in word form and in number form. Students complete 11 problems total.
Curated OER
Adding and Subtracting Positive and Negative Numbers
In this math worksheet, students complete 32 addition and subtraction problems. The first 22 involve integers. There are 6 problems with positive and negative decimals. The last 4 problems are fractions.
Alabama Learning Exchange
"Like Terms", I Add Them
Ninth graders add and subtract polynomials. In this Algebra I lesson plan, 9th graders work practice problems as they view a PowerPoint presentation of the lesson plan. Both the horizontal and vertical methods of addition and...
Curated OER
Addition and Subtraction: By Checkbook
Young scholars develop an understanding of the need for adding and subtraction skills in balancing a checkbook.
Curated OER
Subtraction
In this subtraction worksheet, students write the difference for the 25 double digit subtraction problems. Students enhance their subtraction skills.
Curated OER
Subtraction
In this subtraction worksheet, students write the difference for the double digit subtraction equations. Students solve 23 problems.
Curated OER
Subtraction
In this subtraction worksheet, students write the difference for the double digit subtraction problems. Students solve 20 subtraction problems.